Method of burnishing



JAMES F. THOMPSON, OF ROOKLAND, ASSIGNOR OF ONE-HALF TO CHARLES F. BAKER, OF BOSTON, MASSACHUSETTS.

METHOD OF BURNlSHlNG.

SPECIFIGATION forming part of Letters Patent No. 494,943, dated April 4;, 1893.

Application filed January 19, 1893. Serial No. 459,001. (No specimensil I To alZ whom it may concern: Sarily performed while the surface of the heel Be it known that I, JAMES RTHOMPSON, of is damp or in temper. The result is that af- Rockland, in the county of Plymouth and for the heel has been burnished, its surface State of Massachusetts, have invented certain is liable to check or crack as it parts with its 5 new and useful Improvements in Methods of moisture. In my improved process the sur- Burnishing Heels and other Parts of Boots face is thoroughly dried before polishing, so or Shoes, of which the following is a specifithat the burnished surface is much less liable cation. to check or crack than heretofore.

This invention has for its object to provide The use of carnauba wax is also an impor- 1C an improved process of burnishing the surtaut feature. I find aftera long series of exfaces of heels and other parts of boots and periments that there is no other was known shoes, and it consistsin the succession of steps to me that will combine with a solvent solu- Which I will now proceed to describe. tion in forming a composition adapted to be In burnishing a heelI first apply to the surburnished or polished after being dried upon 13 face thereof a composition composed of carthe surface to which it has been applied.

nauba wax, a solution adapted to cut or dis- Heretofore a method of burnishing heels solve the wax, and coloring matter, the whole has been practiced consisting in first dyeing constituting a composition of such consistor coloring the surface to be burnished, then ency that it can be readily applied to the heel burnishing the dyed surface, then applying 20 by means of abrush, and will constitute when wax to said surface, and then again burnishapplied, a coating of suitable thickness, withing the same, said process involving such a out having a tendency to flow from the surseries of operations that it requires much face to which it has been applied. A suitmore time than myimproved process. Itwill 7o able composition may be made by dissolving be observed that I apply the coloring matter 25 twenty pounds of carnauba waxin an aqueous and wax at one operation, and burnish at one alkaline solution which may be composed of operation; hence I am enabled to materially two pounds of caustic soda and ten gallons of reduce the time required for carrying out the water, and then adding one and one half process. pounds nitrate of iron, two pounds of aniline I claim- 0 coloring matter, four ounces of tannin or tan- The improved process hereinbefore denic acid and a suitable quantity of gum arascribed of burnishing heels and other parts bio. I do not limit myself however to this of boots and shoes, the same consistingintakcomposition. After applying a coating of ing a coating composed of carnauba wax and said composition to the surface of the heel, I coloring matter held in solution by a suitable 5 dry said coating thoroughly, and then subsolvent and applying the same at one opera jeot the coated surface to the action of a rap tion to the surface to be burnished, then dryidly rotating brush or other yielding polishing said coating, and finally subjecting the ing tool adapted to produce a gloss or polish same to a rapidly moving yielding surface, as on the said surface byfriction. Theburnished set forth.

40 surface thus produced is very durable and is In testimony whereof I have signed my not liable to fade or become discolored. name to this specification, in the presence of An important step in the process, is the two subscribing Witnesses, this 16th day of drying of the coating before it is burnished. January, A. D. 1893.

Heretofore heels have been burnished by first JAMES F. THOMPSON. 5 dyeing the surface, then applying wax, and Witnesses:

then polishing with a rapidly moving yield- A. D. HARRISON,

ing surfaced tool, the polishing being neces- \IVALTER S. MoLEoD. 

